<script setup lang="ts">
const props = defineProps({
    // 数据
    options: {
        default: null,
        type: Array,
    },
    separator: {
        default: ',',
        type: String,
    },
    // 当未找到匹配的数据时，显示value
    showValue: {
        default: true,
        type: Boolean,
    },
    // 当前的值
    value: [Number, String, Array],
})

// 记录未匹配的项
const unmatchArray = ref([])

const values = computed(() => {
    if (props.value === null || typeof props.value === 'undefined' || props.value === '')
        return []
    return Array.isArray(props.value) ? props.value.map(item => `${item}`) : String(props.value).split(props.separator)
})

const unmatch = computed(() => {
    unmatchArray.value = []
    // 没有value不显示
    if (props.value === null || typeof props.value === 'undefined' || props.value === '' || !props.options?.length)
        return false
    // 传入值为数组
    let unmatch = false // 添加一个标志来判断是否有未匹配项
    values.value.forEach((item) => {
        if (!props.options.some(v => v.value === item)) {
            unmatchArray.value.push(item)
            unmatch = true // 如果有未匹配项，将标志设置为true
        }
    })
    return unmatch // 返回标志的值
})

function handleArray(array) {
    if (array.length === 0)
        return ''
    return array.reduce((pre, cur) => {
        return `${pre} ${cur}`
    })
}
</script>

<template>
    <div>
        <template v-for="(item, index) in options">
            <template v-if="values.includes(item.value)">
                <span v-if="(item.elTagType == 'default' || item.elTagType == '') && (item.elTagClass == '' || item.elTagClass == null)"
                      :key="item.value"
                      :index="index"
                      :class="item.elTagClass"
                >{{ `${item.label} ` }}</span>

                <el-tag v-else
                        :key="`${item.value}`"
                        :disable-transitions="true"
                        :index="index"
                        :type="item.elTagType"
                        :class="item.elTagClass"
                >
                    {{ `${item.label} ` }}
                </el-tag>
            </template>
        </template>

        <template v-if="unmatch && showValue">
            {{ unmatchArray | handleArray }}
        </template>
    </div>
</template>

<style scoped lang="scss">
.el-tag + .el-tag {
    margin-left: 10px;
}
</style>
